Interlocking brick-block construction



Feb. 13, 1934. F. E CLARK 1,947,188

INTERLOCKING BRICK-BLOCK CONSTRUCTION Filed May 4, 1931 VVrVf/ :9% zum@ *lf-,

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D k FRHNKE. DLHRK. Y* BY l KZ n ,Wam ATTORNEY. a 3 X Patented Feb. 13, 1934 UNTED STATES PATENT QFFECE INTERLOCKING BRICK-BLOCK CONSTRUCTEON Frank E. Clark, Bridgeport, Conn.

Application May 4, 1931. Serial No. 534,921

2 Claims.

other structures where a great strength is desired.

vention is to provide concrete block units water proof wall of An object of the inwhich may be laid with great accuracy and speed to produce walls of any desired standard widths, and which will be waterproof, and of uniform strength and density throughout. posed to provide a constru It is particularly proction which will take the place of poured concrete walls, permitting the erection of such walls without the extra labor and expense heretofore necessary for constructing forms, and eliminating the delays incident to drying, removal of forms, etc.

A further object is to provide vertically arranged interlocking means on the blocks ends adapted to align the blocks as they are laid up,

and to cooperate with the mortar joints to provide vertically disposed laterally offset locking joints.

Another object is to provide a vertically disposed enlarged passage between adjacent blocks in which the mortar will pack by its own will provide a seal against ture through the wall. It

having interlocking means, and

provide tie blocks weight to produce a locking mortar joint which penetration of moisis also proposed to further to provide finished blocks of various standard lengths for use construction of corners.

as fillers and in the With the above and other objects in view,

embodiments of the invent accompanying drawing, will be hereinafter more ion are shown in the and these embodiments fully described with' reference thereto and the invention will be finally pointed out in the claims.

In the drawing:

Fig. 1 is a plan view of one of the courses of a concrete block wall structure, of 12 inch width,

according to my invention.

Fig. 2 is a plan view of inch width.

a wall structure of 16 Fig. 3 is a plan view of a wall structure of 20 inch width.

Fig. 4 is a plan view of a wall structure of 24 inches long by cters indicate correthe several figures of the concrete stretcher the wall is of generpreferred size being 51/2 inches At one end a groove (Ci, vznes) l1, of semi-circular cross-section, is provided vertically of the center line oi the vertical end surface and at its other end a rib or projection l2, also of semi-circular cross-section, is provided in corresponding relation to said groove, so that when the ends of similar units are butted the rib will register with the groove, and align the units. When mortar is placed between the units the rib and groove structure disposes a vertical pillar of the mortar in offset relation to the main body of the vertical mortar joints and thereby provides a lock against shifting.

A vertical offset mortar lock, having substantially the same function, will also be formed when the groove is opposed to a plane surface unit or where one grooved end is opposed to another grooved end. In this case the enlarged space provided by the groove permits the mortar to readily pack into the joint by its own weight producing a dense watertight joint and providing a seal against penetration of water through the wall.

A concrete tie-block unit 17 adapted to cooperate with the other units, according to my invention, its preferred size being approximately 7% inches long by 51/2 inches high by 12 inches wide. At points in the transverse sides adapted to register with the grooves or ribs of the stretcher units, in the construction of walls such as shown in Figs. 1 to 4, there are provided vertical grooves 18 preferably larger than the grooves and ribs of the stretcher units. In cooperation with either the grooves 11 or the ribs 12 of the stretcher blocks these grooves 18 provide vertical mortar receiving spaces into which the mortar flows freely, packing by its own weight toA produce water sealing and locking joints of great density and strength. This is clearly indicated at 23, Fig. 1.

I have also shown in the wall construction plain ended concrete block units 19, 20 and 2l of corresponding height and width to the blocks 10, but of various length, their preferred lengths being preferably 15% inches, 12 inches and 7% inches respectively.

In constructing walls of different standard widths the several units above described may be employed in any desirable arrangement, but essentially according to the invention, the grooves and ribs are vertically disposed in the wall, so that the mortar joints are formed with vertically arranged offset and enlarged pillars so that all portions of the walls are interlocked against lateral shifting.

In Figs. 1 to 4 I have shown various preferred ways of laying the units to produce standard ilO width walls, the illustrated walls being 12 inch, 16 inch, 20 inch and 24 inch, respectively.

In the 12 inch wall shown in the Figs. 14 to 16 the tie block units 17 are employed in combination with stretcher units 10 as well as the units 19 and 2l, the latter being used as llers and at the corners. Also in the corners oi the course in which the units 17 are employed a unit 22 of the same dimensions as the units 17, but without the grooves 18, is preferably employed.

In forming the 16 inch, 2O inch and 24 inch walls the various units above described are employed in suitable arrangement as illustrated in Figs. 2 to 4.

I have illustrated and described preferred and satisfactory embodiments of the invention, but it will be obvious that changes may be made therein within the spirit and scope thereof, as defined in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:-

1. In a wall construction, a plurality of block units having vertical end surfaces adapted to oppose each other in spaced relation to provide a vertical mortar joint, one of said end surfaces having a vertically disposed rib, and a tie block unit of a width at least corresponding to the width of two of said block units having vertical end surfaces, each of said end surfaces having a plurality of vertical grooves substantially deeper and wider in cross-sectional area than the depth and width of the cross-sectional area or" said rib of the other block units and adapted to receive said rib Vwith the vertical edges of said grooves outwardly spaced from the edges of said ribs; whereby a plurality of vertical pillars of mortal' are provided in said joint, said pillars being of greater thickness than the remainder of said joint, the surface engagement of said pillars with said grooves being of relatively large extent and the surface engagement of said pillars with said ribs being of relatively small extent.

2. In a wall construction, a plurality of block units having vertical end surfaces adapted to oppose each other in spaced relation to provide a vertical mortar joint, one of said end surfaces having a vertically disposed groove, and a tie block unit of a width at least corresponding to the width of two of said block units having vertical end surfaces, each of said end surfaces having a plurality of vertical grooves substantially deeper and wider in cross-sectional area than the depth and width of the cross-sectional area of said groove of the other block unit-s and the vertical edges of said grooves of the tie block unit being outwardly 0I the vertical edges of said grooves of the other block units; whereby a plurality of vertical pillars of mortar are provided in said joint, said pillars being of greater thickness than the remainder of said joint, the surface engagement of said pillars with said grooves of the tie bloclf` unit being of relatively large extent and the surface engagement of said pillars with said grooves of the other block unit being of relatively small extent.

FRANK E. CLARK. 

